The dog barked loudly.

I usually dog my brother around everywhere.

He showed dogged determination to finish the race.

In this cutthroat business world, it's a dog eat dog .

The shepherd dog herded the sheep into the pen.

The sheep dog herded the flock into the pen.

The prairie dog is a small burrowing rodent that is native to the grasslands of North America.

I found an abandoned dog on the street.

The police dog helped track down the suspect.

He is the top dog in the company.